Robustness of the nodal d-wave spectrum to strongly fluctuating competing order

Abstract

We resolve an existing controversy between, on the one hand, convincing evidence for the existence of competing order in underdoped cuprates, and, on the other hand, spectroscopic data consistent with a seemingly homogeneous d-wave superconductor in the very same compounds. Specifically, we show how short-range fluctuations of the competing order essentially restore the nodal d-wave spectrum from the qualitatively distinct folded dispersion resulting from homogeneous coexisting phases. The signatures of the fluctuating competing order can be found mainly in a splitting of the antinodal quasi-particles and, depending of the strength of the competing order, also in small induced nodal gaps as found in recent experiments on underdoped La{2-x}SrxCuO4.

arXiv comment5 pages, 4 figures

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Cited by in corpus (10)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Charge Order in the Pseudogap Phase of Cuprate Superconductors
• Disappearance of Nodal Gap across the Insulator-Superconductor Transition in a Copper-Oxide Superconductor
• Spatially Modulated Electronic Nematicity in the Three-Band Model of Cuprate Superconductors
• Evolution from a nodeless gap to d(x2-y2) form in underdoped La(2-x)SrxCuO4
• Spin-charge interplay in antiferromagnetic La${}_{2-x}$Sr${}_x$CuO${}_4$ studied by the muons, neutrons, and ARPES techniques
• Fermi arcs and pseudogap phase in a minimal microscopic model of $d$-wave superconductivity
• Superconducting phase diagram of itinerant antiferromagnets
• Surprises in the t-J model: Implications for cuprates
• Inhomogeneity, Fluctuations, and Gap Filling in Overdoped Cuprates